Harken Zircon blocks are a high-performance solution for sailors who want to adjust their sails in rapidly changing conditions. Industrial ceramic ball bearings and separation cages ensure minimal friction and smooth operation. Available in 29mm, 40mm and 57mm sizes, single, double and triple blocks, with or without hunsvot - the perfect choice for sailors who demand performance.
Harken Zircon blocks are a high-performance solution for sailors who want to adjust their sails in rapidly changing conditions. Industrial ceramic ball bearings and separation cages ensure minimal friction and smooth operation. Available in 29mm, 40mm and 57mm sizes, single, double and triple blocks, with or without hunsvot - the perfect choice for sailors who demand performance.